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      Permanent link:
      https://www.ias.ac.in/article/fulltext/pram/060/02/0377-0381

    • Keywords

       

      Sterile; neutrino; LSND

    • Abstract

       

      We investigate symmetries in Dirac and Majorana mass matrices of neutrinos in a three-generation scenario. We show that if we invokeLe +Lμ-LτxS2R symmetry, one combination of right-handed neutrino states remains massless which can be interpreted as a sterile neutrino. Next we consider a SU2Lx U(1)yx U(l)R gauge model and show how higher-dimensional operators can induce mixing between left- and right-handed states which explains solar, atmospheric and LSND experimental results.

    • Author Affiliations

       

      Biswajoy Brahmachari1 2 Sandhya Choubey3 Rabindra N Mohapatra4

      1. Saha Institute of Nuclear Physics, 1/AF Bidhan Nagar, Kolkata - 700 064, India
      2. Abdus Salam International Centre for Theoretical Physics, Strada Costiera 11, Trieste - 34100, Italy
      3. Department of Physics and Astronomy, University of Southampton, Highfield, Southampton - SO17 1RJ, UK
      4. Department of Physics and Astronomy, University of Maryland, College Park, MD - 20742, USA

    • Dates

       
      Published
      February 2003

  • Pramana – Journal of Physics | News

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      Posted on July 25, 2019

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